Anode



- Sept. 8, 1925.

H. G. RIcE wow.

.Filed May 22, 1924 INVENTOR .jfiwa'rd (ZfZzJce ATTORNEY Patented Sept. 8, 1925. I w' l r UNITED STATES PATENT OFFICE.

HOWARD GEO. RICE, F WATERBURY, CONNECTICUT.

ANODE.

Application filed May 22, 1924. Serial No. 715,219.

To all'wkomz't may concern: and'an anode has been produced havin a 5 Be it known that I, HOWARD G. RICE, a central core and a plurality of projecting citizen of the United States, and a resident prongs, and adapted to provide a relatively of tVaterbury, county of New Haven, and large working surface to permit the anode 5 State of Connecticut, have invented certain to dissolve rapidly and uniformly.

new and useful Improvements in Anodes, Referring now to the drawings in which of which the following is a specification. like reference numerals denote correspond-- This invention relates to electroplating aping parts throughout the several views, the paratus, and more particularly to an imnumeral 10 indicates the core or body por- 10 proved form of anode for supplying metal tion of the anode, said core being tapered to a plating bath. inwardly from top to bottom and being One object of this invention is to provide diamond-shaped in cross section, whereby an anode having a relatively large surface, the core will be provided with ribs 11 at its said anode being so proportioned as to perfour corners.

16 mit the metal thereof to dissolve evenly and In order to provide means for hanging the rapidly with the production of the minianode upon a bus bar or other conductive mum amount of scrap. support, the core is provided at its top with A further object is to provide an anode a cylindrical section 12 having a hook 13 of the above nature comprising a central extending upwardly therefrom.

20 core or body portion having a plurality of For the purpose of increasing the surprongs or spurs projecting in opposite diface of the anode, the core 10 is provided 7 rections therefrom, and lying in a single with a plurality of laterally extending and plane. downwardly inclined prongs 14. The prongs A further object is to provide an anode 14 are preferably diamond-shaped in cross 25 of the above nature which will be simple, section, and are tapered inwardly toward inexpensive to manufacture, compact in contheir outer ends 15 to provide a series of struction, ornamental in appearance, and points, to facilitate the dissolving of the very efficient and durable in use. metal from the anode. As isclearly shown With these and other objects in view, in Figs. 1 and 3 the prongs 14 extend from 30 there has been illustrated on the accompanythe .core 10 in opposite directions and lie in ing drawings one form in which the invena single plane perpendicular to the direction may be conveniently embodied in praction of the cathode.

tice.. In operation, the anode will be preferably Fig. 1 represents a perspective view of the positioned in the plating bath with the plane 85 anode. ofrits projecting prongs at right angles to Fig. 2 is a sectional. view of one of the a line between the anode core andthe cathprongs of the anode taken along the line ode. The position of the anode should pref- 2-2 of Fig. 1. erably be reversed 180 degrees from time Fig. 3 is a transverse sectional view of to time so as to insure a more even dissolv- 40 the anode taken along thebroken line 3-3 ing away of the metal.

of Fig. 1, looking in the direction of the One advantage of this invention is that the arrows. core and prongs as they dissolve in the plat- The present anode is an improvement over ing bath will preserve the original general the invention disclosed in the prior Patent, tapered shape, and will not be subject to 45 No. 858,160 to Deloye, dated June 25, 1907. weakening at intermediate points, as is the Numerous unsuccessful attempts have casein untapered fiat anodes. 1 0 been made in the past to design an anode While there has been disclosed in this which would have sufficient surface to specification one form in which the invention rapidly supply metal to a plating bath, and may be embodied, it is to be understood that which at the same time would not dissolve this form is shown for the purpose of illusunevenly and cause parts of the anode to fall tration only, and that the invention is not 1 off and clog the plating bath. to be limited to the specific disclosure but By means of the present invention, the may be modified and embodied in various above and other objects have been secured, other forms Without departing from its spirit. In short, the invention includes all the modifications and embodiments coming within the scope of the following claims.

Having thus fully described the invention, what is claimed as new, and for which it is desired to secure Letters Patent, is:

1. In an anode for electroplating baths, a core of gradually diminishing size from top to bottom, said core being angular in cross section, a plurality of integral prongs pro: jecting from said core in opposite directions, said prongs being angular in cross section and pointed at their extremities.

2. In an anode for electroplating baths, a core, said core being diamond-shaped in cross section, a plurality of integral prongs projecting from said core in opposite directions, said prongs lying in a single plane and being tapered and diamond-shaped in cross section.

3. In an anode for electroplating baths, a core of gradually diminishing size from top to bottom, said core being angular in cross section and having a plurality of integral prongs extending laterally and obliquely downwardly in opposite directions and lying in a single plane, said prongs being angular in cross section and having pointed extremities.

4. In an anode for electroplating baths, a core of gradually diminishing size from top to bottom, said core being angular in cross section and having a plurality of prongs extending laterally and obliquely downwardly in opposite directions in a single plane, said prongs being angular in cross section and having pointed extremities.

5. In an anode for electroplating baths, a core of gradually diminishing size from top to bottom, said core being angular in cross section and having a plurality of prongs extending laterally and obliquely downwardly, said prongs being angular in cross section, and having pointed tips.

6. In an anode for electroplating baths, a core adapted to hang verticallyin a platingtank, a plurality of prongs pro ecting laterally from said core and lying in a single plane, said prongs overlapping one another and having sharp edges extending in the direction of the cathode, whereby a large surface area of metal will be exposed to the electrolyte to permit the anode to be rapidly dissolved.

7. In an anode for electroplating baths, a core adapted to hang vertically in a plating tank, two rows of laterally projecting pointed prongs connected to said core, said rows extending in opposite directions, said prongs lying in a single plane perpendiculanto'the direction of the cathode, said core and said prongs having sharp edges extending in the direction of the cathode whereby a large surface of metal will be exposed to the action of the electrolyte.

8. In an anode for electroplating baths, a core adapted to hang vertically in a plating tank, two rows of laterally projecting pointed prongs connected to said core, said rows extending in opposite directions and lying in a single plane perpendicular to the direction of the cathode, said core and said prongs being angular in cross section.

9. In an anode for electroplating baths, a core adapted to hang vertically in a plating tank, two rows of laterally projecting pointed prongs connect d to said core, said rows extending in opposite directions andlying in a single plane perpendicular to the direction of the cathode, sa d core and said prongs being angular in cross section, said core being1 inwardly tapered from top to bottom, an said prongs diminishing in length and being inwardly tapered from said core to the tips of said prongs.

10. In an anode for electroplating baths, a vertical core, a plurality of integral prongs projecting from said core in opposite directions, each of said prongs having a sharp edge to facilitate the solution of the anode.

In testimony whereof, I have aflixed my signature to this specification.

HOWARD. GEOL RICE. 

